WhatsApp Messenger is a cross-platform instant messaging client for smartphones, PCs and tablets. The app relies on the Internet to send images, texts, documents, audio and video messages to other users that have the app installed on their devices. Launched in January 2010, WhatsApp Inc. was acquired by Facebook on February 19, 2004, for about $19.3 billion. Today, more than 1 billion people use the service to communicate with their friends, loved ones and even customers.
Users typically access social media services via web-based technologies on desktops and laptops, or download services that offer social media functionality to their mobile devices (e.g., smartphones and tablets). As users engage with these electronic services, they create highly interactive platforms through which individuals, communities, and organizations can share, co-create, discuss, and modify user-generated content or pre-made content posted online.